1.

Find whether the square of the following numbers are even or odd? (i) 431(ii) 2826(iii) 8204 (iv) 17779(v) 99998

Answer»
NumberUnits digit of square of a numberEven / Odd
(i) 43112 = 11 , odd
(ii) 282662 = 366, odd
(iii) 820442 = 166 , even
(iv)177799= 811 , odd
(v) 9999882 = 644 , even



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